Concept explainers
Sum each of the following
Interpretation:
The overall cell reaction for the given half-cell is to be determined.
Concept Introduction:
Oxidation is the addition of an electronegative element or the removal of an electropositive element in a chemical reaction.
Reduction is the addition of an electropositive element or the removal of an electronegative element in a chemical reaction.
The chemical reaction in which both oxidation and reduction takes place simultaneously is called a redox reaction.
Electrolysis is the process in which a redox reaction takes place at the electrodes. The electrode that is charged positively is called the anode. The electrode that is charged negatively is called the cathode. During electrolysis, reduction takes place at the cathode and oxidation takes place at the anode.
Answer to Problem 38E
Solution: a)
Explanation of Solution
a)
Adding the two half reactions gives the overall cell reaction as follows:
Therefore, the overall cell reaction is as follows:
b)
Adding the two half-cell reactions gives the overall cell reaction as follows:
Therefore, the overall cell reaction is as follows:
Want to see more full solutions like this?
Chapter 14 Solutions
CHEMISTRY IN FOCUS (LL)-TEXT
- a) Why is it possible that all types of atoms occupy the fundamental energy level?b) What should be the value of the participation function so that it occurs?c) keep in mind that the translational levels of a system are very close, which must be the condition that tenga lugar el condensado de átomos en el fundamental level?arrow_forwardAt the polar moment of Rnm transition, you can confirm thata) nunca can be ser 0b) is a very important magnitude in Raman spectroscopyc) is related to the probability of spectroscopic transactionsd) is related to the selection rulesarrow_forwardIn Fourier transformed spectroscopya) use a very sensitive monocromador systemb) the detection time is inferior to conventional spectroscopiac) the signal is detected depending on the frequencyd) occurs simultaneously at all frequency intervalsarrow_forward
- If a radiation intensity l0 = 2.5x1010 fotones s-1cm2 results in a dissolución, an absorption of 0.95 will be recorded. What is the percentage of incident radiation and transmission?a) 88.88% b) 5% c) 11.22% d) 95%arrow_forwardIndicate the spectroscopic transmission that requires greater energy radiation. Justification:a) NMR b) vibration c) electronica d) rotationarrow_forwardAfter an induced absorption process of an intensity, there are (without population inversion) transitions between:a) vibrational and rotational levels in the infrared region, we obtainb) vibrational levels exclusively in the infrared regionc) vibrational and rotational levels in the microwave regiond) transitions between nuclear spin levels in the radio frequency regionarrow_forward
- In a spontaneous emission process:a) the ground state population decreasesb) the excited state population decreasesc) the non-radiative component is predominantd) the emitted radiation is coherentarrow_forwardFor a molecule there are 3 energy levels A, B and C, where B is an intermediate energy level between A and C. The A → C transition occurs at 480 nm and the B → C transition occurs at 885 nm. Indicate the wavelength at which the A → B transition will occur.arrow_forwardFor a molecule there are three energy levels: A, B and C. If the transition A → B occurs at 1049 nm and the transition B → C occurs at 885 nm, we can say that the wavelength of the transition A → C will occur at approximately:a) 164 nm b) 1934 nm c) 480 nm d) 967 nmarrow_forward
- : Naming the Alkanes a) Write the IUPAC nomenclature of the compound below b) Draw 4-isopropyl-2,4,5-trimethylheptane, identify the primary, secondary, tertiary, and quaternary carbons. c) Rank pentane, neopentane and isopentane for boiling point. pentane: H3C-CH2-CH2-CH2-CH3 neopentane: CH3 H3C-C-CH3 isopentane: CH3 CH3 H3C-CH2-CH-CH3arrow_forwardAn essential part of the experimental design process is to select appropriate dependent and independent variables. True Falsearrow_forward10.00 g of Compound X with molecular formula C₂Hg are burned in a constant-pressure calorimeter containing 40.00 kg of water at 25 °C. The temperature of the water is observed to rise by 2.604 °C. (You may assume all the heat released by the reaction is absorbed by the water, and none by the calorimeter itself.) Calculate the standard heat of formation of Compound X at 25 °C. Be sure your answer has a unit symbol, if necessary, and round it to the correct number of significant digits.arrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage Learning
- Chemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning